Spark-arrester.



PATENTED OCT. 10, 1905.

E.- TOMER.

SPARK ARRESTER.

APPLICATION FILED JAN. 3. 1905.

lnventol.

UNITED STATE QPALEENT OFFICE.

ELLIS TOMER, OF HANFOhI), CALIFORNIA.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed Jannary3, 1905. Serial No. 239,445.

To all I/lL/l/IL if may concern: I

gerous or annoying without checking the draft of the stack or otherwise interfering with the action of the boiler or furnace.

\Yit-h these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings; forming a part of this specification, and in which corresponding parts are denoted by like designating characters. is illustrated the preferred form of the embodiment of the invention capable of carrying the same into p 'actical operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages, and the rightis therefore reserved of making all the changes and modifications which fairly fall within the scope of the invention and the claims made therefor.

In the drawings thus employed, Figure l is a sectional elevation. Fig. 2 is a side elevation. Fig. 3 is a transverse section on the line 3 3 of Fig. 1. Fig. e is a transverse section on the line 4: a of Fig. 1.

The device may be attached to any size or form of smoke-stack connected to any of the various forms ofboilers or furnaces employing fuel which emits dangerous or annoying sparks and consists of an annular frame 10, having an inner vertical rim 11 to engage the stack 12 at or near its outlet end and supported in any suitable manner detachably thereon.

Disposed above the base member is a cap member formed with vertical side wall 13, having inwardly-extending and upwardly-inclining rims 14: 15 at the upper and lower ends and connected to the outer edge of the baseframe by a cylindrical shell 16, of screen material of suitable texture, to catch and retain l the sparks and cinders, while permitting the smoke and gaseous products of the combustion to freely pass. Attached by its base to the upper inclined rim 14: is a conical inner shell 17, also of screen material and depending into the cylindrical screen 16. The cap member is further supported by spaced staybars 18. extending between the rim 11 of the base-frame and the lower rim 15 of the cap member and riveted by their ends to the same. The lower rim 15 is provided with spaced apertures 19 to permit the sparks and cinders falling on the rim to escape to the receptacle formed by the base-frame l0, and the baseframe will also be provided with apertures 20 21 at opposite sides covered by closures 22 23,

hinged, as at 2a 25, to swing downwardly to provide for the discharge of the accumulations of'cinders and other matter.

hleans are provided for opening and closing the members 23 from the base of the stack orfrom the ground, consisting of arms 26 27, attached to the closures and curving upwardly and inwardly and overlapping alongside the cylindrical member 16, the arm 27 terminating in an eye 28, inclosing the arm 26 and slidable thereon, and the arm 26 terminating in an eye 29, from which an operating-rod 34) leads to any distance convenient to the hand of the operator. A spring 31 is connected to the eye 28 or other portion of thearm 27 and exerts its force to maintain the arms yieldably in their elevated position and hold the closures 22 23 yieldably closed, and to automatically return them to their closed position when the rod 30 is released inclined gather-plates 32 33 will be disposed within the shell 16 between the apertures 20 21 to guide the material into the apertures and provide for the entire discharge of the same from the device.

By this arrangement when the sparks, smoke, gases, and other products of combustion pass upward from the stack either by natural or forced draft the same are deflected by the conical member 17 and thrown laterally against the deflecting-rims 15 let and the vertical wall 13 of the cap and also against the cylindrical shell 16, the cinders, sparks, and other solid particles being caught by the intcrposed members and the smoke and gases only permitted to pass through the meshes of the screen material. The upwardly-moving material is not violently retarded or checked, but merely deflected from a straight course, with the result of slightly retarding and checking the same and permitting the heavier particles to settle upon the inclined shelf 15 and into the pockets formed by the gather-plates 32 33 and upon the closures 22 23 and from which it may be removed by drawing downward upon the rod 30 and opening the closures when required, as above noted. The material settling upon the deflector-rim 15 will fall through the apertures 19 into the pockets upon the base-frame 10 and prevent undue ac cumulations thereon.

The device is very simple in construction, eificient in action, and will effectually retain the sparks and cinders without interfering with the draft of the stack.

Having thus described the invention, what is claimed is 1. In a spark -arrester, an annular baseframe for detachable connection to a smokestack, a cap member formed with vertical side walls and, inwardly-extending and upwardlyinclined annular retarding-rims at the ends and spaced from said annular base-frame and connected thereto by a cylindrical screen, and a retarding-cone of screen material connected by its base to the uppermost of said inclined retarding-rims and depending into said cylindrical screen.

2. In a spark arrester, an annular baseframe for detachable connection to a smokestack and provided with spaced discharge-apertures, yieldable closures to said apertures, a'cap member formed with vertical side walls and inwardly extending and upwardlyin-. clined annular retarding-rims at the ends and spaced from said annular base-frame and connected thereto by a cylindrical screen, and a retarding-cone of screen material connected by its base to the uppermost of said inclined retarding-rims and depending into said cylindrical screen. Y

3. In a spark-arrester, an annular baseframe having an outer vertical rim and an inner vertical rim for detachable connection to a smoke-stack and with spaced discharge-apertures provided with yieldable closures, a cap member spaced from said base member and connected to its outer rim by a cylindrical screen, the ends of said cap member having inwardly-extending and upwardly-inclined retarding-rims, and a cone of screen material connected by its base to the uppermost of said retarding-rims and depending into said cylindrical screen.

4. In a spark-arrester, an annular baseframe for detachable connection to a smokestack and provided with spaced discharge-apertures, deflecting-plates carried by said baseframe for guiding material to said apertures, a cap member having inwardly-extending and upwardly-inclining retarding-rims at the ends and with spaced discharge-apertures in the lowermost of said rims, a cylindrical screen extending between said cap member and said annular base, and a cone of screen material secured by its base to the uppermost of said deflecting-rims and depending into said cylindrical screen.

5. In a spark-arrester, an annular frame for detachable connection to a smoke-stack, a cap member spaced from said base member and connected thereto by a cylindrical screen and provided at the ends with inwardly-extending and upwardly inclined annular deflectingrims, spaced stay-bars extending between said base-frame and the lower of said deflectingrims, and a cone of screen material connected byits base to the upper of said deflecting-rims and depending into said cylindrical screen.

6. In a spark-arrester, an annular frame for detachable connection to a smoke-stack and provided with spaced discharge-apertures, a cap member spaced from said base-frame and connected thereto by a cylindrical screen and provided with an inwardly-extending and upwardly-inclined deflecting-rim at the upper end, a cone of screen material connected by its base to said deflecting-rim and extending into said cylindrical screen, swinging closures to said discharge-apertures, a curved arm connected to one of said closures and terminating in an eye for receiving an operating-rod, a curved arm connected to the other of said closures and terminating in an eye slidable upon the first-mentioned curved rod, and a spring connected to maintain said arms yieldably in their upward position, whereby said closures are maintained yieldably closed and operable by the action of said operating-rod.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

ELLIS TOMER.

Witnesses:

E. O. LARKINS, BLANCHE MELBURNE. 

